Cloth-cutting machine



(No Model.) 2 Sheets-Sheet 1.

LL SMITH. GLOTH CUTTING MACHINE. No. 510,717. Patented Dec. 12, 1893.

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GLOTH CUTTING MACHINE.

No. 510,717. Patented Dec. 12, 1893.

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.WITNESSES. w i I L @MIIIIIII Machines and I do hereby declare thefollowof a cloth cutting machine containing my in- UNITED STATES PATENTOFFICE.

LOUIS SMITH, OF CLEVELAND, OI-IIO.

CLOTH-CUTTING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 510,717, dated December12, 1893.

Application filed March 23, 1893.

To all whom it may concern.-

Be it known that I, LOUIS SMITH, a citizen of the United States,residing at Cleveland, in the county of Ouyahoga and State of Ohio, haveinvented certain newand usefullmprovementsin Feed Mechanism'forCloth-Cutting ing to be a full, clear, and exact description of theinvention, such as will enable others skilled 1n the art to which itappertains to make and use the same.

My invention relates particularly to a ma chine adapted to cut biasstrips from velveteen or other fabric. In the use of a machine of thischaracter, it is desirable that all of the strips cut by the successiveoperations of the knife shall be of equal width, and that the strips becut rapidly.

The object of my invention is to provide means for automatically feedingthe fabric forward uniform distances after each shearing operation; andmy invention consists in the construction and combination of partshereinafter described and pointed out definitely in the claims.

In the drawings, Figure 1 is a side elevation vention. Fig. 2 is aplanView of the same, with the knife and the mechanism for supporting andoperating it removed. Fig. 3 is a vertlcal sectional view on line 33 inFig. 2; and Fig. 4 is a sectional view through the feed plate, rockshaft and presser'bar.

Referring to the parts by letters, A repre-- sents the bed or table ofmachine, at one end of which a vertically movable knife bar B is mountedobliquely with respect to the table. The knife bar is guided by groovesb in the vertical posts I), which posts are connected by a yoke b Itisnot claimed that thereis anything novel in the construction of the headas shown nor in the mechanism for operating the knife bar. Any suitableconstruction of these parts may be adopted; and since my invention doesnot relate to these parts, it is believed that a description thereofis'unnecessary.

Mounted in longitudinal guide waysin each side of the machine near thehead, are the slides G. On the top of each slide is a bearing for oneend of the rock shaft D, which extends obliquely across the machineparallel to the Serial No. 467,299- (No model.)

knife bar. To this rock shaft at intervals the arms 01' cl are rigidlyattached, and to the lower ends of thesearms the presser bar d issecured.

A feed plate F extends obliquely across the machine close to the table,and its ends are secured to said slides. The presser bar lies above thefront edge of the feed plate.

Pivoted to each slide 0 is a lever E. To the upper end of each lever alink e is pivoted, and this link is connected with the rock shaft bymeans of a finger on its end which enters a groove in the upper side ofa collar d on the rock shaft D. A transverse rock shaft G is mountedbelow the bed plate and to it are attached two arms g Links g g areconnected at their ends respectively with the said arms 9 and the leversE. The rock shaft G may be operated by any convenient mechanism. I haveshown a crank shaft I-I havingthe crank h thereof connected by the rod hto an arm g on the rock shaft.

The operation of the described parts is as follows: When by the movementof the rock shaft G the links g g are drawn backward, the'first effectof the'movement is torock the levers E. The movement of these leversfirst causes the rock shaft D to rock, thereby liftin g the presser barand freeing the fabric from the grasp of said presser bar and feedplate. When this result is attained, the levers E strike stops 0 c onthe slides, whereupon said slides are drawn backward carrying with themthe feed plate, presser bar and rock shaft, which parts slide freelywithout moving the fabric. When the links g g are moved forward by therock shaft G, they first rock the levers E in the opposite direction tothat above described, with the result of first moving the presser bar onto the fabric, which is thereby pressed firmly against the'feed plate.The

further continuance of the forward movement of links g g causes theslidesC C to be moved forward, together with the feed plate and presserbar, thereby carrying the fabric with them.

Having described my invention, I claim. 1. In a cloth cutting machine,in combination, two slides mounted on opposite sides of the bed of themachine, a feed plate connected with said slides and lyingclose to saidbed, with a presser bar and its actuating mechanism carried by saidslides, substantially as and for the purpose specified.

2. In a cloth cutting machine, the combination, of two slides mounted onopposite sides of the bed, and a feed plate lying close to said bed andconnected with said slides, with a rock shaft mounted on said slides,arms secured to said rock shaft, a presser bar secured to said arms, andmechanism for operating said slides and rock shaft, substantially as andfor the purpose specified.

3. In a cloth cutting machine, the combination of two slides mounted onopposite sides of the bed, and a feed plate lyingclose to said bed andconnected with said slides, a rock shaft extending across the machinemounted on said slides, arms secured to said rock shaft, and a presserbar secured to said arms, with levers pivoted to said slidesrespectively, mechanism connecting said levers with the rock shaft, arock shaft G, arms secured thereto, and links connecting said arms withsaid levers, substantially as and for the purpose specified.

In testimony whereof I affix my signature in Lotus SMITH.

Witnesses:

E. L. THURSTON, FRANK MILLER.

